A.(φB+φF)/(φB+φF+φH)B.φB/(φB+φF+φH)C.φF/(φB+φF+φH)D.(φB+φF)/(φF+φH)
A.油層;氣層B.稠油層;輕質(zhì)油C.稠油層;氣層D.殘余油;輕質(zhì)油
A.增加B.減小C.趨于零D.穩(wěn)定